Tick-borne Rickettsial Infections of Dogs
Rickettsial organisms are small, obligate intracellular bacteria in the order Rickettsiales. Two families—Anaplasmataceae and Rickettsiaceae—contain species that infect dogs. These pathogens are transmitted by a variety of tick vectors, maintained in wildlife and domestic reservoirs, and can cause clinical disease in humans, dogs, and other domestic animals. This article discusses the basic epidemiology, clinical presentation, diagnosis, and treatment of canine ehrlichiosis, anaplasmosis, and Rocky Mountain spotted fever (RMSF).